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glucose transporter

Fumitaka Okajima, Tomoko Nagamine, Yuko Nakamura, Naomi Hattori, Hitoshi Sugihara, Naoya Emoto
The efficacy of the administration of sodium-glucose co-transporter 2 inhibitor (SGLT2I) or the co-administration of SGLT2I and dipeptidyl peptidase-4 inhibitor (DPP-4I) to insulin therapy is not well known. Fifty-eight patients with type 2 diabetes, admitted for glycemic control, were randomized to basal-bolus insulin therapy (BBT) alone or BBT plus 50 mg ipragliflozin and/or 20 mg teneligliptin. Insulin doses were adjusted to maintain normal blood glucose levels. Plasma glucose profiles were estimated by continuous glucose monitoring (CGM) before discharge...
October 20, 2016: Journal of Diabetes Investigation
Raquel Fonseca, Rui A Carvalho, Cristina Lemos, Ana C Sequeira, Inês R Pita, Fábio Carvalho, Carlos D Silva, Rui D S Prediger, Ivana Jarak, Rodrigo A Cunha, Carlos A Fontes Ribeiro, Attila Köfalvi, Frederico C Pereira
INTRODUCTION: We recently showed that a single high dose of methamphetamine (METH) induces a persistent frontal cortical monoamine depletion that is accompanied by helpless-like behavior in mice. However, brain metabolic alterations underlying both neurochemical and mood alterations remain unknown. AIMS: Herein, we aimed at characterizing frontal cortical metabolic alterations associated with early negative mood behavior triggered by METH. Adult C57BL/6 mice were injected with METH (30 mg/kg, i...
October 19, 2016: CNS Neuroscience & Therapeutics
Bhavana Sosale, Aravind Sosale, Arpandev Bhattacharyya
INTRODUCTION: Dapagliflozin, a sodium glucose co-transporter 2 (SGLT2) inhibitor, is a promising drug approved for the treatment of type 2 diabetes mellitus (T2DM). However, its cost is an obstacle for use in developing countries like India. Thus, we aimed to analyse the impact on the cost of insulin therapy after adding dapagliflozin for patients using insulin in real-world clinical practice. METHODS: This retrospective chart review study included patients with uncontrolled T2DM previously on maximum doses of OADs and insulin therapy, initiated on dapagliflozin...
October 19, 2016: Diabetes Therapy: Research, Treatment and Education of Diabetes and related Disorders
David Leon, Daniela Parada, Mauricio Vargas-Uribe, Alejandra A Perez, Lorena Ojeda, Angara Zambrano, Alejandro M Reyes, Mónica Salas
The polyphenol nordihydroguaiaretic acid (NDGA) has antineoplastic properties, hence it is critical to understand its action at the molecular level. Here, we establish that NDGA inhibits glucose uptake and cell viability in leukemic HL-60 and U-937 cell lines. We monitored hexose uptake using radio-labeled 2-deoxyglucose (2DG) and found that the inhibition by NDGA followed a noncompetitive mechanism. In addition, NDGA blocked hexose transport in human red blood cells and displaced prebound cytochalasin B from erythrocyte ghosts, suggesting a direct interaction with the glucose transporter GLUT1...
October 2016: FEBS Open Bio
Jeong-Hee Kim, Jong-Hoon Kim, Young-Don Son, Yo-Han Joo, Sang-Yoon Lee, Hang-Keun Kim, Myung-Kyun Woo
The purpose of the present study was to investigate the patterns of interregional correlations of serotonin transporter (SERT) availability with glucose metabolism using 7-Tesla magnetic resonance imaging (MRI) and high-resolution positron emission tomography (PET) with (11)C-3-amino-4-(2-dimethylaminomethylphenylthio)benzonitrile ([(11)C]DASB) and [(18)F]fluorodeoxyglucose ([(18)F]FDG) in antipsychotic-free patients with schizophrenia in order to shed new light on the disrupted functional connectivity in schizophrenia...
October 16, 2016: Schizophrenia Research
Nirupama Yalamanchili, Andres Kriete, David Alfego, Kelli M Danowski, Csaba Kari, Ulrich Rodeck
Quiescence is the prevailing state of many cell types under homeostatic conditions. Yet, surprisingly little is known about how quiescent cells respond to energetic and metabolic challenges. To better understand compensatory responses of quiescent cells to metabolic stress, we established, in human primary dermal fibroblasts, an experimental 'energy restriction' model. Quiescence was achieved by short-term culture in serum-deprived media and ATP supply restricted using a combination of glucose transport inhibitors and mitochondrial uncouplers...
2016: Frontiers in Genetics
Rohit Kedia, Supriya Kulkarni, Meredith Ross, Vijay Shivaswamy
The dramatic rise in the prevalence of obesity and diabetes is associated with increased morbidity, mortality, and public health care costs worldwide. The need for new, effective, and long-lasting drugs is urgent. Recent research has focused on the role of the inhibitors of sodium- glucose co-transporter 2 (SGLT-2). Clinical trials have shown that SGLT-2 inhibitors have glycemic efficacy and weight-lowering potential. Dual drug therapy is a recommended therapy for patients with new-onset type 2 diabetes who need significant glycemic control...
2016: Patient Preference and Adherence
Ying Guo, YouCai Zhang, WeiHua Huang, Felcy Pavithra Selwyn, Curtis D Klaassen
BACKGROUND: Berberine (BBR) is a traditional antimicrobial herbal medicine. Recently, BBR has gained popularity as a supplement to lower blood lipids, cholesterol and glucose. Bile acids (BAs) are known to regulate blood levels of triglycerides, cholesterol, glucose and energy homeostasis, and gut flora play an important role in BA metabolism. However, whether BBR alters BAs metabolism or dose-response effect of BBR on gut flora is unknown. METHODS: In this study, the effects of various doses of BBR on the concentrations of BAs in liver and serum of male C57BL/6 mice were determined by UPLC-MS/MS, and the expression of BA-related genes, as well as the amount of 32 of the most abundant gut bacterial species in the terminal ileum and large intestine of male C57BL/6 mice were quantified by RT-PCR and Quantigene 2...
October 18, 2016: BMC Complementary and Alternative Medicine
Yue Chen, Suhua Jiang, Jianzhou Zou, Yihong Zhong, Xiaoqiang Ding
The kidney is particularly susceptible to ischemia/hypoxia insult while dysfunction of proximal tubular epithelial cells (PTEC) is a primary pathologic hallmark in acute kidney injury. Hypoxia-inducible factor-1 (HIF-1) is a key regulator responsible for cellular hypoxic responses. Therefore, we investigated the effects of HIF-1 suppression, using small interference RNA (siRNA), upon the cell fate of PTEC under hypoxia, and explored the underlying possible molecular mechanism. Hypoxia was induced with hypoxia mimetic cobalt chloride...
October 19, 2016: Renal Failure
Kristen E Syring, Kayla A Boortz, James K Oeser, Alessandro Ustione, Kenneth A Platt, Melanie K Shadoan, Owen P McGuinness, David W Piston, David R Powell, Richard M O'Brien
Polymorphisms in the SLC30A8 gene, which encodes the ZnT8 zinc transporter, are associated with altered susceptibility to type 2 diabetes (T2D) and SLC30A8 haploinsufficiency is protective against the development of T2D in obese humans. SLC30A8 is predominantly expressed in pancreatic islet beta cells but surprisingly multiple knockout mouse studies have shown little effect of Slc30a8 deletion on glucose tolerance or glucose-stimulated insulin secretion (GSIS). Multiple other Slc30a isoforms are expressed at low levels in pancreatic islets...
October 18, 2016: Endocrinology
Hideaki Kaneto, Atsushi Obata, Tomohiko Kimura, Masashi Shimoda, Seizo Okauchi, Naoki Shimo, Taka-Aki Matsuoka, Kohei Kaku
Type 2 diabetes mellitus is characterized by insulin resistance in various insulin target tissues such as the liver, adipose tissue and skeletal muscle, and insufficient insulin secretion from pancreatic β-cells. Sodium-glucose co-transporter 2 (SGLT2) inhibitors which are newly developed anti-diabetic agents decrease blood glucose levels by enhancing urinary glucose excretion and thereby function in an insulin-independent manner. SGLT2 inhibitors exert beneficial effects for the reduction of insulin resistance as well as for the preservation of pancreatic β-cell function...
October 18, 2016: Journal of Diabetes
Zhiming Zhu
Management of hypertension in diabetes is critical for reducing cardiovascular mortality and morbidity. Dietary approaches for controlling high blood pressure have historically focused on sodium. Thus, many guidelines recommend that patients with type 2 diabetes reduce high sodium intake. Nonetheless, the potential benefits of sodium reduction are debatable. The kidney has a crucial role in glucose filtration and reabsorption in addition to its regulation of fluid and electrolyte homeostasis. A key factor linking sodium uptake and glucose transport is the sodium-glucose cotransporter 2 (SGLT2) in renal proximal tubular cells...
September 2016: Journal of Hypertension
Markus Schlaich, Rosemary Elliott, Caroline Rudnicka, Vance Matthews
OBJECTIVE: Sympathetic nervous system activation is a common feature in various metabolic disorders such as obesity, metabolic syndrome, and type-2 diabetes. The sodium glucose co-transporter 2 (SGLT-2) mediates re-absorption of glucose from the renal proximal tubules. SGLT-2 inhibitors have attracted substantial attention due to their glucose and blood pressure lowering effects. Furthermore, the SGLT-2 inhibitor empagliflozin has recently been associated with improved cardiovascular outcomes in patients with type 2 diabetes...
September 2016: Journal of Hypertension
Asadur Rahman, Yui Takeshige, Yoshihide Fujisawa, Hirofumi Hitomi, Daisuke Nakano, Akira Nishiyama
OBJECTIVE: Disrupted circadian rhythm of blood pressure is associated with cardiovascular events in metabolic syndrome and obesity. Experiments were conducted to examine the effects of sodium-glucose co-transporter 2 (SGLT2) inhibitors on circadian rhythm of blood pressure in a genetic model of obese metabolic syndrome (SHR/NDmcr-cp (+/+) (SHRcp)) and salt-treated obese Otsuka Long Evans Tokushima Fatty (OLETF) rats. DESIGN AND METHOD: Luseogliflozin (10 mg/kg/day, p...
September 2016: Journal of Hypertension
Hikari Takeshita, Masao Takeda, Koichi Yamamoto, Hiromi Rakugi
OBJECTIVE: Angiotensin converting enzyme2 (ACE2), an enzyme that produces the Angiotensin 1-7(A1-7) from Angiotensin II, is considered to suppress organ damage by inhibition of the activation of renin-angiotensin system. We recently found that ACE2 deficiency in mice ameliorated insulin sensitivity of skeletal muscle with reduced expression of glucose transporter 4 and myocyte enhancer factor 2, an important transcription factor to maintain homeostasis of skeletal muscle. In this study, we investigated whether ACE2-A1-7 axis plays a protective role in aging-associated loss of skeletal muscle function in mice...
September 2016: Journal of Hypertension
Chang Hee Jung
Type 2 diabetes mellitus (T2DM) is a complex endocrine and metabolic disorder and is a major global public health problem with a rapidly increasing prevalence. Although a wide range of pharmacotherapy for glycemic control in T2DM is now available, management of T2DM remains complex and challenging. The kidneys contribute to glucose homeostasis primarily by the glucose reabsorption from the glomerular filtrate. The sodium-glucose co-transporter 2 (SGLT2) inhibitors, a new class of antidiabetes agents that inhibit glucose absorption from the kidney tubule independent of insulin, offer a unique opportunity to improve outcomes for patient with T2DM...
September 2016: Journal of Hypertension
Resham Poudel
The kidneys maintain glucose homeostasis through its utilization, gluconeogenesis, and reabsorption. Glucose is freely filtered and reabsorbed in order to retain energy essential between meals. The amount of glucose reabsorbed by the kidneys is equivalent to the amount entering the filtration system. With a daily glomerular filtration rate of 180 L, approximately 180 g (180 L/day × 100 mg/dL) of glucose must be reabsorbed each day to maintain an average fasting plasma glucose concentration of 5.6 mmol/L (100 mg/dL)...
September 2016: Journal of Hypertension
M H Romero, L F Uribe-Velásquez, J A Sánchez, A A Rayas-Amor, G C Miranda-de la Lama
The aim of the study was to determine the effects of abattoir type (conventional abattoir -CA- versus modern abattoir -MA-) on stress parameters and risk factors for high muscle pH in Colombia. A total of 522 Zebu young bulls were studied in two groups: 285 at CA, and 237 at MA. Blood samples were taken to measure cortisol, glucose, lactate, creatine kinase, β-hydroxybutyrate, total protein, albumin, creatinine, urea, haematocrit, leukocytes and N/L ratio. Cattle were monitored during the unloading, lairage, handling and stunning...
October 11, 2016: Meat Science
Patrícia Manuela Ribeiro Pereira, Sandrina Silva, Mafalda Bispo, Mónica da Rocha Zuzarte, Célia Gomes, Henrique Girão, José A S Cavaleiro, Carlos A Fontes Ribeiro, Joao P C Tome, Rosa Fernandes
Here we report the rational design of a new third-generation photosensitizer (PS), a chlorin conjugated with galactodendritic units, ChlGal8, to improve the effectiveness of bladder cancer treatment. ChlGal8 shows better photo-chemical and -physical properties than a recently reported homologous porphyrin, PorGal8. In addition to inheriting excellent photostability, ability to generate singlet oxygen and to interact with the proteins galectin-1 and human serum albumin (HSA), ChlGal8 exhibits high absorption in the red region of the electromagnetic spectrum...
October 17, 2016: Bioconjugate Chemistry
Hyoung Sook Park, Ji Hye Kim, Bo Kyung Sun, Sun U Song, Wonhee Suh, Jong-Hyuk Sung
It has previously been demonstrated that hypoxia has diverse stimulatory effects on adipose‑derived stem cells (ASCs), however, metabolic responses under hypoxia remain to be elucidated. Thus, the present study aimed to investigate the glucose uptake and metabolism of ASCs under hypoxic conditions, and to identify the underlying molecular mechanisms. ASCs were cultured in 1% oxygen, and experiments were conducted in vitro. As determined by proteomic analysis and western blotting, GAPDH and enolase 1 (ENO1) expression were upregulated under hypoxia...
October 5, 2016: Molecular Medicine Reports
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